package com.ggb.smartstudy.service;


import com.ggb.smartstudy.entity.Course;
import java.util.List;

/**
 * @author gefangjie
 */
public interface CourseService {
    Course getCourseById(Integer id);

    List<Course> getAllCourses();

    void insertCourse(Course course);

    void updateCourse(Course course);

    int deleteCourse(Integer id);
}